Yes, it is a self adhesive vinyl film. It is indeed heat sensitive as it is a thermoplast, so it can be deformed. The film has a "memory", so that it has the tendency to reform to its original shape when heated without applying mechanical tension. So if you heat, the film can be stretched around almost any spherical shape.
The thickness is 70 micrometres. The weight is 200g/m² (paperback included i guess)...

Just a heads up to anyone who might be interested. I purchased the product linked by Andre from the seller on EBay and used it to cover my current project. It is inexpensive, works well and I have no complaints however, today I received my free samples from the company in Germany that Andre used and their product is MUCH thinner and lighter weight. It is also more expensive and shipping to the US would be fairly expensive as well, however if weight is a priority, I might recommend using the German product.

Just a heads up to anyone who might be interested. I purchased the product linked by Andre from the seller on EBay and used it to cover my current project. It is inexpensive, works well and I have no complaints however, today I received my free samples from the company in Germany that Andre used and their product is MUCH thinner and lighter weight. It is also more expensive and shipping to the US would be fairly expensive as well, however if weight is a priority, I might recommend using the German product.

That stuff looks great Joe, I have used and use it now, only this is the summer sun & heat can cause this stuff to "bubble" up off depron, but that depends on the quality of Vinyl adhesive.

Joe, thank you for sharing this information. I thought that both materials were the same thickness...at least thats what i read. Very interesting!

But as long as you can use it...I don´t know how much the shipping to the US costs, but i guess if you buy a little more to have some "buffer" like i always do it could be even possible to get the vinyl from germany.

UPDATE:

when i´m already here i can also give you a quick status update...

I intended to do the maiden flight last sunday. The weather was perfect after all those sh**ty weeks. When i programmed my transmitter i noticed that both ailerons are turning in the same direction! In all my models the aileron servos are placed the same way - some of them connected with Y-harnesses, some with one channel each....but in NO case they are going the same direction

So i guess its a manufacturing fault...and i will just turn the servo around and everything should be fine.

Another major malfunction was the new servoless landing gear. The amp draw is so high that my BEC voltage drops drastically, so that the receiver is breaking down I ordered a 7A ubec and got it already, so this weekend the A319 should be ready for maiden. I really want to get it into the air now. So wish me luck!

Today the weather was considerably better than yesterday, so i asked for a cameraman (Danke Malte). The first battery was used for taxiing. Just to get a feel for the Bus.
Then i changed the battery and after the shock right after takeoff (cg is OK, i just took off too early and the engines generate upward momentum) everything was fine. I flew with half throttle most of the time and the power is just alright for this bird.
The landing speed is still a bit too high but i didn´t want to push it on the maiden flight.
There are some minor problems to solve, like the wing locking screw i lost during taxi testing (don´t worry, just a metal cylinder to pull the locking pin backwards to separate the wing and the fuse). Then i will have to attach the gear doors and get the windows and stencils printed and applied.

today the weather was considerably better than yesterday, so i asked for a cameraman (danke malte). The first battery was used for taxiing. Just to get a feel for the bus.
Then i changed the battery and after the shock right after takeoff (cg is ok, i just took off too early and the engines generate upward momentum) everything was fine. I flew with half throttle most of the time and the power is just alright for this bird.
The landing speed is still a bit too high but i didn´t want to push it on the maiden flight.
There are some minor problems to solve, like the wing locking screw i lost during taxi testing (don´t worry, just a metal cylinder to pull the locking pin backwards to separate the wing and the fuse). Then i will have to attach the gear doors and get the windows and stencils printed and applied.

....the nerves....i almost needed new pants i am very lucky that i have those reflexes
But kim, you have to show us some pics of your bus! Would be cool!

doushiyou,
i have my long-term project Robbe BAe146 or Avro RJ70, then in a few days i will start a Robbe Arcus Airy 780 (780mm epo mini-hotliner). And i have another project in my CAD system...some would say it is an airliner too and some won´t. Fact is that it can carry up to 10 passengers and is driven by a pt-6a turboprop. And it is famous for its STOL-capabilities....
so, take a guess everyone who knows the answer gets a first CAD-screenshot